605
FNCA52 TJSJ 221930
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 PM AST THU OCT 22 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-230800-
SOUTHEAST COASTAL PLAINS-
330 PM AST THU OCT 22 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY MCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS TSTMS
CHANCE PRECIP (%) 50 30 70 50
TEMP (24H TREND) 74 (-2) 90 (+1) 75 90
RH % (24H TREND) 89 (0) 56 (-3) 93 57
WIND 20FT/EARLY(MPH) E 5 E 14 E 13 E 14
WIND 20FT/LATE(MPH) NE 6 SE 16 E 12 SE 14
MIXING HGT(FT-AGL/MSL) 4600 4200
TRANSPORT WND (MPH) SE 14 SE 17
VENT RATE (KT-FT) 55200 63000
DISPERSION 5 5
DSI 3 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ015-230800-
SOUTHERN HILLS-
330 PM AST THU OCT 22 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 50 40 60 50
TEMP (24H TREND) 71 (-2) 88 (+3) 71 88
RH % (24H TREND) 98 (+4) 64 (-6) 98 66
WIND 20FT/EARLY(MPH) E 5 E 11 E 11 E 13
WIND 20FT/LATE(MPH) E 5 SE 12 E 11 SE 13
MIXING HGT(FT-AGL/MSL) 4960 4600
TRANSPORT WND (MPH) SE 14 SE 17
VENT RATE (KT-FT) 59520 69000
DISPERSION 5 5
DSI 2 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ016-230800-
NORTH COASTAL PLAINS-
330 PM AST THU OCT 22 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 70 70 40 70
TEMP (24H TREND) 73 (-2) 91 (+1) 74 91
RH % (24H TREND) 98 (+4) 61 (-5) 98 62
WIND 20FT/EARLY(MPH) SE 8 E 12 SE 12 SE 14
WIND 20FT/LATE(MPH) SE 6 E 16 SE 10 SE 14
MIXING HGT(FT-AGL/MSL) 5420 5640
TRANSPORT WND (MPH) SE 10 SE 13
VENT RATE (KT-FT) 48780 62040
DISPERSION 5 5
DSI 2 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ017-230800-
NORTHERN HILLS-
330 PM AST THU OCT 22 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 70 90 30 80
TEMP (24H TREND) 71 (-1) 90 (+2) 72 90
RH % (24H TREND) 99 (+2) 63 (-4) 99 62
WIND 20FT/EARLY(MPH) SE 5 SE 10 E 10 SE 11
WIND 20FT/LATE(MPH) SE 5 E 13 SE 6 SE 12
MIXING HGT(FT-AGL/MSL) 5320 5250
TRANSPORT WND (MPH) SE 10 SE 13
VENT RATE (KT-FT) 47880 57750
DISPERSION 5 5
DSI 1 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ018-230800-
WEST COAST-
330 PM AST THU OCT 22 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 50 80 50 60
TEMP (24H TREND) 73 (-1) 91 (+1) 74 91
RH % (24H TREND) 95 (+2) 64 (-4) 95 65
WIND 20FT/EARLY(MPH) E 9 SE 12 E 12 E 16
WIND 20FT/LATE(MPH) E 6 E 13 E 13 SE 17
MIXING HGT(FT-AGL/MSL) 4300 4130
TRANSPORT WND (MPH) SE 14 SE 17
VENT RATE (KT-FT) 51600 61950
DISPERSION 5 5
DSI 3 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ019-230800-
EASTERN INTERIOR-
330 PM AST THU OCT 22 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 40 60 60 60
TEMP (24H TREND) 72 (-2) 89 (+2) 73 89
RH % (24H TREND) 98 (+3) 62 (-4) 98 63
WIND 20FT/EARLY(MPH) SE 8 SE 12 SE 13 SE 16
WIND 20FT/LATE(MPH) SE 6 SE 13 SE 13 SE 14
MIXING HGT(FT-AGL/MSL) 5770 5510
TRANSPORT WND (MPH) SE 14 SE 17
VENT RATE (KT-FT) 69240 82650
DISPERSION 5 5
DSI 2 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ022-230800-
LUQUILLO MOUNTAIN RANGE-
330 PM AST THU OCT 22 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLDY PCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 60 60 60 60
TEMP (24H TREND) 70 (-3) 87 (+4) 71 87
RH % (24H TREND) 100 (+3) 65 (-6) 100 67
WIND 20FT/EARLY(MPH) SE 6 SE 11 SE 11 SE 13
WIND 20FT/LATE(MPH) LGT/VAR SE 12 SE 10 SE 13
MIXING HGT(FT-AGL/MSL) 4360 3810
TRANSPORT WND (MPH) SE 15 SE 17
VENT RATE (KT-FT) 56680 57150
DISPERSION 5 5
DSI 2 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ023-230800-
CENTRAL MOUNTAIN RANGE-
330 PM AST THU OCT 22 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 50 70 40 50
TEMP (24H TREND) 68 (-3) 86 (+4) 69 86
RH % (24H TREND) 98 (+2) 67 (-7) 99 67
WIND 20FT/EARLY(MPH) SE 5 SE 9 E 8 SE 11
WIND 20FT/LATE(MPH) LGT/VAR SE 10 SE 6 SE 13
MIXING HGT(FT-AGL/MSL) 5260 4920
TRANSPORT WND (MPH) SE 13 SE 16
VENT RATE (KT-FT) 57860 68880
DISPERSION 5 5
DSI 1 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ024-230800-
CAYEY MOUNTAIN RANGE-
330 PM AST THU OCT 22 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 60 40 70 60
TEMP (24H TREND) 71 (-2) 85 (+2) 72 85
RH % (24H TREND) 99 (+2) 67 (-3) 99 69
WIND 20FT/EARLY(MPH) LGT/VAR E 10 E 10 E 11
WIND 20FT/LATE(MPH) LGT/VAR SE 11 E 9 SE 11
MIXING HGT(FT-AGL/MSL) 5070 4290
TRANSPORT WND (MPH) SE 14 SE 16
VENT RATE (KT-FT) 60840 60060
DISPERSION 5 5
DSI 1 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ025-230800-
VIEQUES-
330 PM AST THU OCT 22 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLDY PCLDY PCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 60 40 50 60
TEMP (24H TREND) 77 (-2) 90 (+1) 78 90
RH % (24H TREND) 89 (+3) 60 (-4) 88 60
WIND 20FT/EARLY(MPH) SE 5 E 13 E 16 E 18
WIND 20FT/LATE(MPH) SE 10 SE 14 E 16 SE 16
MIXING HGT(FT-AGL/MSL) 3370 3440
TRANSPORT WND (MPH) E 17 SE 20
VENT RATE (KT-FT) 50550 58480
DISPERSION 5 5
DSI 5 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ026-230800-
CULEBRA-
330 PM AST THU OCT 22 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLDY PCLDY PCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 60 40 40 60
TEMP (24H TREND) 78 (-3) 89 (+1) 79 89
RH % (24H TREND) 89 (+5) 63 (-5) 88 64
WIND 20FT/EARLY(MPH) SE 6 E 13 E 16 E 18
WIND 20FT/LATE(MPH) SE 10 SE 16 SE 17 SE 16
MIXING HGT(FT-AGL/MSL) 3360 3500
TRANSPORT WND (MPH) SE 18 SE 22
VENT RATE (KT-FT) 53760 66500
DISPERSION 5 5
DSI 5 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ027-230800-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 PM AST THU OCT 22 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 50 50 50 50
TEMP (24H TREND) 75 (-2) 92 (+2) 76 92
RH % (24H TREND) 90 (0) 53 (-6) 94 57
WIND 20FT/EARLY(MPH) E 11 E 17 E 17 E 19
WIND 20FT/LATE(MPH) E 13 E 19 E 18 SE 19
MIXING HGT(FT-AGL/MSL) 4420 3610
TRANSPORT WND (MPH) SE 16 SE 17
VENT RATE (KT-FT) 61880 54150
DISPERSION 5 5
DSI 4 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ001-230800-
SAINT THOMAS AND SAINT JOHN-
330 PM AST THU OCT 22 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 70 50 30 50
TEMP (24H TREND) 77 (-3) 88 (+1) 77 88
RH % (24H TREND) 90 (+5) 66 (-4) 91 66
WIND 20FT/EARLY(MPH) SE 9 E 13 E 17 E 18
WIND 20FT/LATE(MPH) E 11 SE 16 E 17 SE 17
MIXING HGT(FT-AGL/MSL) 3340 3330
TRANSPORT WND (MPH) SE 20 SE 22
VENT RATE (KT-FT) 56780 63270
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ002-230800-
ST CROIX-
330 PM AST THU OCT 22 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 50 30 40
TEMP (24H TREND) 77 (-2) 89 (+1) 78 89
RH % (24H TREND) 94 (+5) 66 (-4) 92 66
WIND 20FT/EARLY(MPH) SE 6 E 13 E 16 E 17
WIND 20FT/LATE(MPH) E 10 E 16 E 16 E 16
MIXING HGT(FT-AGL/MSL) 4630 4220
TRANSPORT WND (MPH) SE 17 SE 20
VENT RATE (KT-FT) 69450 71740
DISPERSION 5 5
DSI 5 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
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